papers and the moths which are pinned, will receive an exceedingly low price. 

 Those who wish specimens spread, with labels showing name, locality and 

 date, will pay a somewhat higher figure. Those who wish only particular 

 species which are rare will be asked a much higher price. I mention these 

 things because I know of no other way to handle such an amount of material. 

 It is my intention to advertise sets of the Lepidoptera of the Sierra Nevada 

 Mountains. Species which cannot be obtained at Truckee will be purchased 

 from correspondents. 



Herman H. Brehme, 74 1 3th Ave., Newark, N. J., issues for purposes 

 of exchange just such a price list as I have mentioned. It is quite common 

 to see similar lists advertised in the Canadian Entomologist, Guelph, Ontario, 

 Canada, and in the Entomological News, Academy of Natural Sciences, 

 Philadelphia, Pa. Dealers frequently advertise their wants in these journals. 



ONE CASH PURCHASER. 



Dr. William Barnes, 152 East Prairie St., Decatur, 111., is perhaps the 

 largest purchaser for cash in America. Last year he bought my entire output, 

 1 1 ,500 specimens, unnamed and unassorted, for five cents per specimen, 

 promptly sending me his check for $575.00. I would much rather sell the 

 results of a season's work, in bulk, at this low figure, than to sort, label, 

 spread, and name each insect and dole them' out to individual purchasers at a 

 much higher rate. There is a world of work in properly preparing 20,000 

 specimens for market. 



EUROPEAN DEALERS. 



Dealers in Canada, England, Germany, Austria, Russia, and in fact in 

 all foreign countries, as well as those in the United States have their own 

 particular, individual methods of purchasing flies. In Europe, the prices paid 

 for each species has been pretty well regulated and determined,, but in America 

 collectors have been in the habit of accepting whatever they could get for their 

 specimens. Each one competes with the other and the result is that there are 

 no such thing as fixed values. It is only by communicating with a large 

 number of dealers that the best selling prices can be ascertained. 



Certain specimens bring far more than others, and it is the breeding and 

 rearing of these specimens which justify butterfly farming. When you have 

 learned to know the rare species which fly in your particular locality you will 

 devote your attention to the propagation of these species. Should you discover 

 a species which is new to science, you could profitably dispose of hundreds 

 and perhaps thousands of specimens of this single species. 



Of course, I am' only speaking of the markets offered by those who buy 

 and sell Lepidoptera in order to supply the wants of the cabinets of museums 

 and collections. It is said there are ten thousand purchasers in the world who 

 will pay cash for their desiderata. Collections are being started every day in 

 various parts of the world. 



INTEREST IN AMERICAN MOTHS. 



A new and active interest has been taken in American moths during the 

 last few years and the demand is surprisingly large. This is the reason why 

 each correspondent should learn how to successfully sugar, collect from flowers 

 and lights, trap, and propagate moths. It is possible that new species may be 

 found in each locality. Truckee alone has produced over a score of new 

 species of moths, and many localities could do as well if properly worked. 



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